49678253 has 2 divisors, whose sum is σ = 49678254. Its totient is φ = 49678252.

The previous prime is 49678249. The next prime is 49678283. The reversal of 49678253 is 35287694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40934404 + 8743849 = 6398^2 + 2957^2 .

It is a cyclic number.

It is not a de Polignac number, because 49678253 - 2² = 49678249 is a prime.

It is a super-2 number, since 2×49678253² = 4935857642264018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49678283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24839126 + 24839127.

It is an arithmetic number, because the mean of its divisors is an integer number (24839127).

Almost surely, 2^49678253 is an apocalyptic number.

It is an amenable number.

49678253 is a deficient number, since it is larger than the sum of its proper divisors (1).

49678253 is an equidigital number, since it uses as much as digits as its factorization.

49678253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 44.

The square root of 49678253 is about 7048.2801448297. The cubic root of 49678253 is about 367.6112313895.

The spelling of 49678253 in words is "forty-nine million, six hundred seventy-eight thousand, two hundred fifty-three".